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CVE-2015-5697

Status Candidate

Overview

The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure, which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call.

Related Files

Ubuntu Security Notice USN-2777-1
Posted Oct 20, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2777-1 - It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5156, CVE-2015-5697, CVE-2015-6252, CVE-2015-6937, CVE-2015-7312
SHA-256 | 46c8136fdca4490174e05c4c7cc395e95fa80d48569553d289335ec455642933
Ubuntu Security Notice USN-2752-1
Posted Sep 30, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2752-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697, CVE-2015-6252
SHA-256 | 43c8af60617a3cb82c13b8eea007dc203afb51c8b9ee1c3bc727f761b34d969c
Ubuntu Security Notice USN-2751-1
Posted Sep 30, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2751-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697, CVE-2015-6252
SHA-256 | 405924714667abca6dd52a948eb668373582fe5cba40c4a1e880bf55c253e392
Ubuntu Security Notice USN-2749-1
Posted Sep 30, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2749-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697, CVE-2015-6252
SHA-256 | 1ad33970177e89c201e06657bf2522131da69327d6e514c9f7cc7029cbe0d992
Ubuntu Security Notice USN-2748-1
Posted Sep 29, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2748-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697, CVE-2015-6252
SHA-256 | a2cb0cdd12c4fea85e65438f7d13ed3b0ec3c4d26d9c533db9f1fef52292c368
Ubuntu Security Notice USN-2731-1
Posted Sep 4, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2731-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697
SHA-256 | 24de15f1493c6e8ff0741238e4f6fad9f9643a4c34d66df965eb90be9e6d208c
Ubuntu Security Notice USN-2732-1
Posted Sep 4, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2732-1 - Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-5697
SHA-256 | 87862b897221aa7dbd1dbce8cd61773ac51ef742543caa1e335e901a4834e577
Debian Security Advisory 3329-1
Posted Aug 7, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3329-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-1333, CVE-2015-3212, CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366, CVE-2015-5697, CVE-2015-5706, CVE-2015-5707
SHA-256 | 032d7754d15daf5a42e6f9f97780a9dd8431d502054c7f15a05b87b1417f2da4
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